Everything in Colombia (note the spelling) is adjusted by 'by age, sex, and location.' Outside of totalitarian communist or fascist regime, this is the easiest way to thwart a revolution by those who have absolutely nothing. By building these 'stair steps' into rents, utilities, transit fares, medical and other social services, everything remains private enterprise. The stepped plans are intended to be a temporary hand-up, not a hand-out. There is something of a stigma for being in a 0-2 zone (6 is the top, where a typical US citizen would live) and people work very hard to get themselves up and out of those situations. Currently the country is struggling under a completely shattered border (not unlike our own) with millions of Venezuelans pouring through to escape the 'workers paradise' Chavez created. The United States doesn't have poverty, anyone that doesn't believe it should spend some time traveling around the globe. I would sum it up saying it's not Obama care, it's not socialism, but it is a fix that appears to be working without a 'Dear Leader,' or 'IRS enforcers.'